Write more JavaScript error documentation: the list of errors which have no mdn pages link corresponds to SpiderMonkey error code which are reported to the devtool console which do not have any corresponding MDN pages.

Tagging standard

Pages in the JavaScript/ page tree should at least have the tag "JavaScript".

For methods belonging to an object, the name of the Object should be added (e.g. String.fromCharCode should have "String").

Methods should have "Method" and properties need a "Property" tag. All prototype members have the "prototype" tag.

Features added in a new ECMAScript version have the tags "ECMAScript6" and "ECMAScript 2015" or later versions/years.

The Experimental tag should only be used with new features where the standard is not yet finalized (e.g. in a strawman proposal) and the feature is in a Nightly version or behind a preference.

Features are Deprecated if their usage is discouraged and are Obsolete if they have been removed from engines.

If pages need any type of work, a "Needs*" tag should be added (see above).

Specifications

The following specifications are taken under consideration for this project: